Shuttle for automatic filling-replenishing looms



Feb. 27, 11923. 1 11,446,512

T. HI. MCGOWAN. SR

SHUTTLE; FOR AUTOMATIC FILLING REPLENISHING LOOMS Filed July 28, 1922 6r-r-qv T ""7" J T x J mug v Hull Patented Feb, 27, 119230 UNETED @TATESPATENT @FFHCCEO THOMAS H. McGOWAN, SR., OF STONINGTON, CONNECTICUT,ASSIGNOR T DEAF ER CORPORATION, OF HOPEDALE. BIIASSACHUSETTS,ACORPORATION OF MAINE.

SHUTTLE FOR. AUTOMATIC FILLING-REPLENISHING LOOMS.

Application filed July 28, 1922. Serial No. 576,168.

To alive/1.0m wit may concern; means which secures the threader to the/Be it known that l. 'lrionAs ll. Mcfimvan', shuttle. Sn, a citizen ofthe United States, and reslf rth r bj t f th invention is to lent ofStonington, county of New London, provide a cutter of the characterdescribed 5 State of Connecticut. have invented an 1111- with means forsupporting the filling in subprovement in Shuttles for AutomaticFillstantially the horizontal plane of the thread ing-ReplenishingLooms, of which the foleye of the shuttle. lowing description, inconnection with the Other objects and features of the inventionaccompanying drawing, is a specification, will more fully appear in thefollowing dem like characters on the drawing representing scription andthe accompanying drawings like parts, and will be pointed out in theclaims.

This invention relates to improvements in A preferred embodiment of theinvenshuttles for automatic filling replenishing tion is disclosed inthe accompanying drawlooms and the object thereof is to provide a ing asapplied to a shuttle having a sheet 115 thread cutter carried by theshuttle which metal threader such as the general tvpe ilwill sever thefilling running from the web of lustrated in Patent No. 933.497 grantedSepcloth to the discharged filling carrier during tember 7, 1909 to E.S. Stimpson, but it will the first pick of the shuttle, after transfer.be understood that the invention is adapted I lin usual automatic loomconstruct-ions the to be embodied in any suit-able threader to acfilling extending from the web of cloth to hi h it may b li bl thefilling carrier which is discharged upon I th d i I transfer is clampedand severed by the shut- Fig. 1 is a plan view of the end portion tle.feeler thread cutter. It has been found of the shuttle showing thethreader and cutthat in some instances, particularly where ter embodyingthe invention;

25 heavy filling is used such as that of tlre Fig. 2 is a verticalmedian longitudinal duck fabric, the shuttle feeler thread cutter ti n fth same; fails to sever the filling and since the filling Fig. 3 is avertical longitudinal sectional is very coarse, with a high number ofply. view similar to Fig. 2 showing the running it will not break duringthe unwinding of hight of the filling in the position in which 363 thefilling carrier so that the filling end exthe bight is severed duringthe first pick of tending to the discharged shuttle is carried theshuttle after transfer. 86 into the web of cloth during the next pick Thh ttl ill t t d i th acvmnmmafter transfer and possibly during two ()l'ing' drawing is f the usual type having a three picks. thus producing animperfection body 1 provided with a chamber 2 to receive 35 in the clothwhich must be removed by hand. the filling carrier 3 and provided with athere the filling is thus removed it is difiihannel in its end portionin which th y 90' cult to remedy the imperfection. By the thr ad 4 imounte present invention the shuttle is provided The threader 4. whichis of the general with a cutter which acts during the first pick typeillustrated in the Stimpson patent above 4c of the shuttle aftertransfer to sever the referred to, is formed of sheet metal to fitrunning bight of the filling which extends in the channel and isprovided atits front from the web of the cloth to the discharged endwith an overhanging shield 5 and a beak: filling carrier when the bightis in proximity (3 which serves to guide the filling through to) theselvage of the cloth so that a very the usual threading slot into theeye 7 of 45 short end is left which, if drawn into the the shuttle. Therear end of the threader is cloth, can be readily removed by handwithprovided with a guard 8 which overlies the out causing animperfection in the weave. path of the filling and serves to prevent itA further object of the invention is to from being thrown from thethreader. provide a thread cutter of this type which. The rear end ofthe threader is provided 50 can be readily applied to usual types ofwith an extension 9 which is bent upwardly threaders. and thisextension, together with the lower 10.3

A further object of the invention is to prowall of the threaderisprovided with a slot vide a. cutter of the character which can be 10which extends beneath the cutter which secured within the threader bythe same will hereinafter be described. The body of the shuttle isprovided with a recess 11 which lies beneath the threader and the slot10 to enable the running bight of the filling to be The upper portion ofthe body of the cutter desirably is curved and the crest 14 of the curvelies substantially in the plane of the axis of the thread eye of theshuttle so that this curved surface serves to support and guide thefilling to the thread eye. The cutter is provided with an edge 15 Whichs located below the horizontal plane of the axis of the thread eye andextends toward the chamber in the shuttle which receives the fillingcarrier. The blade preferabl abuts against the upwardly turned mem ersof the threader extension 9 so that the slot 10 in the latter, whichdesirably converges downwardly, against the central portion the cuttingblade.

In the operation of the device, where the shuttle thread cutter fails tosever the filling running from the web of cloth to the filling carrierwhich is discharged during transfer, the ,first pick of the shuttleafter transfer formsva running bend or bight 16 in the filling aroundthe edge of the cutting blade as the shuttle moves across the lay.During the beginning of this flight of the shuttle the filling runsfreely across the cutof the edge of ting edge as the shuttle approachesthe selvage of the web of cloth. When, however, the shuttle passes theselvage the filling is drawn forcibly against the blade and severed.This action of the shuttle is illustrated in Fig. 3 in which the filling17, which extends from the selvage 18 of the cloth to the dischargedfilling carrier, is illustrated as being bent sharply around the cuttingblade 16. At this time the weight of the discharged filling carrierimposes a tension upon the filling 17 which acts in opposition to thetension upon the portion 19 of the filling extending from the selvage 18to the blade so that further movement of the shuttle (to the left)causes the filling to be severed in proximity to the selvage of thecloth. By reason of this operation the severed filling end is only twoor three inches long and if whipped into the cloth can be readilyremoved without causing an imperfection in the web of the cloth.

\Vhile it is primarily intended to employ the present invention inconnection with the usual shuttle feeler thread cutter it will beobvious that the same will operate in the serves to direct the filling.

mannerabove described even in the absence of a shuttle feeler threadcutter.

It will be understood that the embodiment of the invention disclosedherein is illustrative and not restrictive and that various changes inform, construction and arrang ment of arts may be made within the spiritand scope of the invention, and further that the invention may beembodied in various other types of threaders than thatparticularlvillustrated herein.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is:

1. A shuttle for automatic filling replenishing looms having meanscarried thereby actlng during the first pick of the shuttle aftertransfer to sever the filling extending from the web of cloth to thedischarged filling carrier.

2. A shuttle for automatic filling replenishing looms having a cuttercarried thereby acting by the movement of the shuttle during the firstpick after transfer to sever the filling extending from the web of clothto the discharged filling carrier in proximity to the selvage of thecloth.

3. A shuttle for automatic filling re lenishing looms having a fillingcarrier c amber, a rigid cutting blade presenting an edge toward thefilling carrier chamber acting during the first ick after transfer tosever the running biglit in the filling which extends from the web ofthe cloth to the dispick after the transfer to sever the filling inproximity to the salvage of the cloth.

A shuttle for automatic filling re lenishlng looms having a fillingcarrier 0 amber, a threader having a slot in its bottom communicatingwith said chamber and a recess in the shuttle body underlying said slot,a cutting blade presenting an edge extending toward saidchamber,overlying the slot in said threader, acting during the first pick aftertransfer to sever the filling in proximity to the selvage of the clothand filling guiding members extending upwardly from the bottom of thethreader acting to direct the bight formed during thefirst pick towardthe central portion of said cutter.

6. A shuttle for automatic filling replenishing looms having a fillingcarrier cham ber, a threader having a slot in its bottom communicatingwith said chamber and a recess in the shuttle body underlying said slot,:1 cutting blade presenting an edge extending toward said chamberoverlying the slot in said threader acting during the first pick aftertransfer to sever the filling in proximity to the selvage of the clothand means acting to secure both the threader and the cutting blade inthe shuttle.

7. A shuttle for automatic filling replen= ishing looms having a fillingcarrier chamher, a threader to receive and guide the filling from thefilling carrier to the eye of the shuttle provided with a slot in itsbottom, a recess underlying said threader communicating with said slot,a cutting blade having a filling supporting and guiding portion locatedsubstantially in the horizontal plane of the shuttle eye and havingacutting edge located below said plane extending toward the" chamber ofsaid shuttle acting during the first )ick after transfer to sever therunning biglit in the filling which extends from the Web of cloth to thedischarged filling carrier when said biglit is in proximity to theselvage of the cloth.

In testlmony whereof, I name to this specification.

THOMAS H. McGOWAN, SR.

have signed my

